Use a higher quality headset with your iPhone or smartphone
Convert two 3.5mm (1/8 inch) plugs to single Smartphone 3.5mm plug (TRRS)
Works with 3.5mm jack on Apple, Android, Blackberry, Windows, or other Smartphones
Reduce Electromagnetic Radiation...

Convert 3.5mm Smartphone plug to single 4P4C RJ9/RJ10 handset plug.
Save money by buying a smartphone headset, or using your existing one with your Aastra phone's handset jack.
Reduce clutter with single headset.
Does not work with RJ11 jack, which...

Converts a standard 3.5mm combo headphone/microphone port into two distinct ports – one 3.5mm headphone jack and one 3.5mm microphone port
Great solution and compact design for maximum travel portability. Carry around just one high quality...

Convert 2.5mm Headset to 3.5mm Jack
Use your phone headset with iPhone, iPad, Android, Blackberry, Motorola, PS4, Windows, or other smartphone or tablet 3.5mm headset jack
Great for traveling, carry just one headset
Works with most 2.5mm mono...

Due to out of stock - we will be sending a combination of 2 adapters to supplement this. All functions are the same.
Female RJ9 to Male 3.5mm plug headset adapter
Convert RJ9/RJ10/RJ22 Headset to most smartphones with 3.5mm Headphone...

Use your 3.5mm headset with almost any office phone - 8 settings cover most phone models including Cisco
Combines the PH35-RJ9A of the PH35-RJ9Cisco adapters!
Works great with most VOIP phones with a RJ9/Rj10/Rj22 headset...

Use a standard batteryless electret condenser mic (ECM) such as lavalier, PC, or headset mic, with your smartphone or tablet
Not for use with mics that require batteries
Works with most smartphones that have a combined headset and mic...